Decarboxy Carnosine HCL, also known as N-acetylcarnosine hydrochloride, is a synthetic derivative of carnosine. Carnosine and decarboxylated carnosine possess excellent antioxidant and anti-glycation properties, leading to their widespread use in anti-aging products.
Carnosine is a dipeptide composed of β-alanine and histidine. Decarboxylated carnosine has one less carboxyl group (-COOH) than carnosine. This structure improves its absorption and permeability to the skin.
| Items | Specification | Results |
| Appearance | White to off-white powder | White powder |
| Water content (K.F.) | ≤ 1.5% | 0.2% |
| pH | 2.5-4.5 | 3.9 |
| Purity (by HPLC) | ≥ 98.5% | 99.4% |
| Chloride | 26.6%-29.4% | 28.8% |
| Lead (Pb) | ≤ 10 ppm | Conforms |
| Arsenic（As） | ≤ 2 ppm | Conforms |
| Cadmium（Cd） | ≤ 5 ppm | Conforms |
| Mercury（Hg） | ≤ 1 ppm | Conforms |
| TAMC | ≤ 1000cfu/g | < 10cfu/g |
| Mold&Yeast | ≤ 100cfu/g | < 10cfu/g |
| Thermotolerantcoliform | Negative | Not detected |
| Pseudomonasaeruginoa | Negative | Not detected |
| Conclusion | It conforms to the enterprise standards | |
Decarboxylated carnosine is more stable, has better adsorption and permeability to the skin surface, and lasts longer.
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